Set up a network service bootstrap.

services/network/BUILD.gn

Index: services/network/BUILD.gn
diff --git a/services/network/BUILD.gn b/services/network/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..9ebafdde111af1da773360b408b838d4d6f2ff0f
--- /dev/null
+++ b/services/network/BUILD.gn
@@ -0,0 +1,19 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+copy("copy_prebuilt_network_service") {
+  filename = "network_service.mojo"
+  if (is_android) {
+    sources = [
+      "prebuilt/android-arm/$filename",
+    ]
+  } else {
+    sources = [
+      "prebuilt/linux-x64/$filename",

[jamesr, 2015/01/23 23:15:00]

can we assert(is_linux) here so if someone tries this on another platform they
get a more obvious error?

[ppi, 2015/01/23 23:24:35]

Done.

+    ]
+  }
+  outputs = [
+    "$root_out_dir/$filename",
+  ]
+}